/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.workflow.simple.definition.form;

import com.fasterxml.jackson.annotation.JsonTypeName;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import org.activiti.workflow.simple.exception.SimpleWorkflowException;

import java.util.ArrayList;
import java.util.List;

/**
 * A form-property with a value that is represented as single item selected
 * from a list of possible values.
 *
 * @author Frederik Heremans
 */
@JsonTypeName("list")
public class ListPropertyDefinition extends FormPropertyDefinition {

    protected List<ListPropertyEntry> entries = new ArrayList<ListPropertyEntry>();

    @JsonSerialize(contentAs = ListPropertyEntry.class)
    public List<ListPropertyEntry> getEntries() {
        return entries;
    }

    public void setEntries(List<ListPropertyEntry> entries) {
        this.entries = entries;
    }

    public void addEntry(ListPropertyEntry entry) {
        entries.add(entry);
    }

    @Override
    public FormPropertyDefinition clone() {
        ListPropertyDefinition clone = new ListPropertyDefinition();
        clone.setValues(this);
        return clone;
    }

    @Override
    public void setValues(FormPropertyDefinition otherDefinition) {
        if (!(otherDefinition instanceof ListPropertyDefinition)) {
            throw new SimpleWorkflowException("An instance of ListPropertyDefinition is required to set values");
        }

        ListPropertyDefinition datePropertyDefinition = (ListPropertyDefinition) otherDefinition;
        setName(datePropertyDefinition.getName());
        setMandatory(datePropertyDefinition.isMandatory());
        setWritable(datePropertyDefinition.isWritable());

        // Copy the entries from the other definition
        if (entries == null) {
            entries = new ArrayList<ListPropertyEntry>();
        } else {
            entries.clear();
        }

        if (datePropertyDefinition.getEntries() != null) {
            ListPropertyEntry newEntry = null;
            for (ListPropertyEntry entry : datePropertyDefinition.getEntries()) {
                newEntry = new ListPropertyEntry(entry.getValue(), entry.getName());
                entries.add(newEntry);
            }
        }

        setParameters(otherDefinition.cloneParameters());
    }
}
